Antifriction-bearing for railway-cars.



' No. 793,350. l PATBNTED AUG. 29, 1905.

Ji J. LAKE A A. c. DEVBRELL.

ANTIPRIGTION BEARING PoR RAILWAY GARS.

APPLICATION FILED 00T.8,1904.

NVE/77055 ff /3 5267 MM UNITED sTATEs PATENT OFFICE.

JULIUS J. LAKE AND ARTHUR C. DEVERELL, OF ST. PAUL, MINNESOTA.

ANTIFRICTION-BEARING FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented Aug. 29, 1905.

Application iiled October 8,1904. Serial No. 227,620.

To all whom/t may concern,.-

Be it known that we, JULIUs J .-LAKE and ARTHUR C. DEVERELL, of St. Paul, Ramsey bearings for a car-body which will prevent ,all undue racking ortwisting of the car and the strain and wear on the wheel-hanges vthat result from the lateral thrust or lurch of the car in rounding curves or Whilerunning on al rough track.

The inventionconsists generally in providing roller or antifriction bearings upon the truck-bolsters at each corner of the car whereon the entire load is supported, there being no bearing at the center plate.

Further, the invention consists in providing a double bearing at each corner, one above the other, the travelers of one bearing being movable in a direction substantially at right angles to the direction of movement of the travelers of the other bearing of the same corner.

In the accompanying drawings, forming part of this specification, Figure 1 is a side elevation of a portion of a car-truck with our improved bearing applied thereto. Fig. 2 is a transverse section through the center of the car, showing the center plate and the manner of mounting the bearing at the corner between the truck and body bolsters. Fig. 3 is a detail view of the center plate. Fig. 4 is a sectional view of the truck-bolster, showing the bearings thereon. Fig. 5 is a detail sectional view showing the movement of the upper bearing with respect to the lower one.

In the drawings, 2 represents a car body or platform having a bolster 3 and center plate 4, provided with a transverse slot 4 to receive a pin 5, that passes through a plate 5. These plates and the pin are similar to the parts usually employed in a center bearing; but, as shown in Fig. 2, the plates do not contact with one another, the upper one being raised a sufficient distance above the lower to throw the entire weight of the car-body and load upon the corner bearings.

6 is the truck-bolster, and 7 the wheels of one truck, having the frame, 8 whereon the bolster 6 is supported above the springs 9. Upon each end of the truck-holsters at the four corners of the car we secure a plate 10,

having a series of roller or traveler ways 11 vin its upper surface. There are preferably three of these ways-one in the middle and one on each side-though a greater or less number may be employed, if preferred. The bottoms of the ways are curved upwardly on each side to cause the cylindrical rollers or travelers 12 to seek the centers thereof and return the carbody to its normal central position on the trucks whenever it is thrown out laterally in rounding a curve or on a rough track. The plate l0 is provided with iianges 13 at the ends of the ways to prevent longitudinal movement of the travelers, but permit them to roll freely back and forth in the ways with the movement of the car-body. Above the plate 10, secured to the under side of the body-bolster 3 at each corner of the car, is a second plate 14, having ways l5 in its under surface arranged to receive travelers similar to those described that move in a direction substantially at right angles to the direction of movement of the travelers in the ways of the plate 10. We prefer to provide only two ways, however, in the upper plate, while there are three in the lower one, as above described. Between the plates 10 and 14 isa floating or loose plate 16, having ways in its upper and under surfaces corresponding in number and arrangement, respectively, to those in the opposing surfaces of the plates l() and 14. By the term iioating or loose plate we mean one that is not connected or attached in any way to the fixed plates, but is free to move back and forth with the rollers in their ways. Flanges 17 prevent longitudinal movement of the travelers in the upper ways, and the bottoms of the said upper ways are curved, so that the travelers will center themselves and return the car-bod y to its normal position.

As will be noted from the above description, the entire load of the car is supported at the corners above the wheels where the bearing should properly be located, the bearing at the center plate being entirely eliminated, the slot therein allowing free lateral movement of the car-body upon its corner bearings. The employment of the double bearing at each corner allows the car-body and its load to move freely in either direction, one part of the bearing accommodating itself to' the lateral lurch or thrust of the car on the curves and the other part taking up the forward movement. This will have the effect of making thecar ride easier, eliminating nearly all the strain thereon and reducing the wear on the wheel-flanges.

. We claim as our invention 1. A roller-bearing for railwayfcars, comprising plates adapted to be secured one above the other to the ytruck and body holsters respectively, and having roller-ways in their opposing surfaces, a loose or floating plate disposed between said fixed plates and having lroller-ways-in its upper and under surfaces corresponding respectively to the ways in said opposing fixed plates, and vrollers pro-y yvided in said ways, the rollers above said fioating plate being movable in their ways in .a direction substantially at right angles to the direction of movement of the rollers in the ways below said plate.

2. A lroller-bearing for cars comprising fixed plates adapted to be secured one above vthe other respectively to the truck and bodylbolster and having oppositely-arranged ways Fin their opposing surfaces, a floating plate provided between said fixed plates and having Ways in its upper and under surfaces corresponding to those in the opposing surfaces of 'said'fixed plates, and rollers fitting in said Ways, substantially as described.

3. A roller-bearing forl railway-cars, comprising plates adapted to be secured one above the other to the truck and body bolsters respectively, and having roller-ways in their `opposing surfaces, there being a wayin the lower'plate on each side and one in the midydle, and each way being concave in form and having'flanges at the ends, and the ways in the upper plate being similarly formed and having flanged ends and being two in number, and afioating plate disposed between said fixed plates and having roller-Ways in its up per and under surfaces correspondingin number and arrangement respectively to the ways in the opposing surfaces of said fixed plates,l and rollers provided in said ways and adaptedto roll thereinwth the `motion of the car; body, the rollers above said plate being mov-v, able in-a direction substantially at right an? veas gles tothe direction ofmovemento'f the rollers below said plate,substantially as described.

4:. A bearing for cars comprising :plates adapted to be secured one above the otherl respectively to the truckand body-bolster and Yhaving oppositely-arranged ways in their, opposing surfaces, a loose or floating plate provided between said fixed plates and having ways in its upper and under surfaces corresponding to those in the op posing surfaces of said fixed plates, and travelers'fitting in said ways.

5. A bearing for cars comprising iixedways mounted one abovethe other on the car-'truck and ybody-bolster respectively and `near the ends thereof, aloose or floating plate providedY between said xed ways and having ways in its upperand `under surfacesfcorresponding to the opposing fixed ways,said `plate being capable of movement forward or backward travelers provided in saidways, substantially as described and for the-purpose specified.

In witness whereof I have hereunto set my hand at Minneapolis, MinnesotaOctober 1,

JULIUSJI LAKE. Witnesses:

RICHARD PAUL, C. MACNAMARA.

In witness whereofI have'hereunto set my hand at St. Paul, Minnesota, October 3, 1904.

" ARTHUR C. DEVERELL.

lVVitnessesz GEORGE E. BUDD,

J. K. HOFFMAN. 

